JPH0549373B2 - - Google Patents
Info
- Publication number
- JPH0549373B2 JPH0549373B2 JP59197366A JP19736684A JPH0549373B2 JP H0549373 B2 JPH0549373 B2 JP H0549373B2 JP 59197366 A JP59197366 A JP 59197366A JP 19736684 A JP19736684 A JP 19736684A JP H0549373 B2 JPH0549373 B2 JP H0549373B2
- Authority
- JP
- Japan
- Prior art keywords
- tape
- resin film
- welded
- joint
- shaped resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920005989 resin Polymers 0.000 claims description 32
- 239000011347 resin Substances 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 23
- 238000003825 pressing Methods 0.000 claims description 13
- 238000003303 reheating Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000003973 paint Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/26—Making hollow objects characterised by the use of the objects cans or tins; Closing same in a permanent manner
- B21D51/2676—Cans or tins having longitudinal or helical seams
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Containers With Two Or More Constituent Elements (AREA)
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、溶接缶接合部内面にテープ状樹脂フ
イルムを貼着し、当該部を被覆補正する方法の改
善に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an improvement in a method for applying a tape-shaped resin film to the inner surface of a welded can joint part and correcting the coverage of the part.
［発明の技術的背景］
缶胴に側面接合部を有する缶体としては、半田
缶、接着缶などが用いられているが、近年、溶接
缶も実用されるようになつてきた。溶接缶は、通
常缶材として錫メツキ鋼板、ニツケル鍍金鋼板、
テインフリースチール、ブラツクプレートなどを
用い、溶接すべき端縁部を除き、塗装、印刷を施
した缶胴ブランクを作り、これを筒状に丸め、ブ
ランク端縁同志を重ね合わせ、電気抵抗シーム溶
接を行い缶胴を形成するという手段をとるため、
缶胴溶接々合部における溶接段差は比較的大き
く、缶胴ブランクの切断端面は金属露出のまま溶
接段差として残り、その外周辺には金属材の未塗
装面が露出しており、缶胴溶接々合部およびその
近傍の被覆補正が必要不可欠である。[Technical Background of the Invention] Solder cans, adhesive cans, and the like are used as can bodies having side joints on the can body, but in recent years, welded cans have also come into practical use. Welded cans are usually made of tin-plated steel sheets, nickel-plated steel sheets,
Using stain-free steel, black plate, etc., we make a can body blank that is painted and printed, excluding the edges to be welded. This is rolled into a cylinder shape, the edges of the blank are overlapped, and electrical resistance seam welding is performed. In order to form the can body by
The welding step at the can body weld joint is relatively large, and the cut end surface of the can body blank remains as a welding step with exposed metal, and the unpainted surface of the metal material is exposed around the outside, and the can body welding It is essential to correct the coverage of the joint and its vicinity.
［従来技術とその課題］
上述したような、缶胴溶接々合部およびその近
傍の被覆補正方法としては、従来より各種塗料を
用いて補正塗装を行う方法が一般的に実施されて
いる。しかし、汎用の溶剤系塗料による被覆補正
では、溶接段差部を適切な膜厚で被覆することが
できず、また粉体塗料などによる被覆補正では、
厚膜塗装はできるが、加工性が悪くなるという不
都合がある。[Prior Art and its Problems] As a method for correcting the coating of the can body weld joint and its vicinity as described above, a method of performing correction painting using various paints has been generally practiced. However, with coating correction using general-purpose solvent-based paint, it is not possible to cover the welded step with an appropriate film thickness, and with coating correction using powder coating, etc.
Although it is possible to paint a thick film, it has the disadvantage of poor workability.
このような補正塗装方法の課題を解決する手段
として、溶接継目部に樹脂フイルムを貼着する方
法が種々提案されている。（例えば、特公昭53−
43350号公報、特開昭56−74436号公報参照）
上記従来技術の概略は、シーム溶接され、か
つ、このシーム溶接々合部が同一線上に揃うよう
に、多数の溶接缶群を縦列で連続搬送せしめ、こ
の搬送途中において、先行缶胴から順に上記シー
ム溶接々合部を、テープ状樹脂フイルムの溶融温
度以上となるよう前加熱を行い、この加熱された
缶胴内面のシーム溶接々合部に、缶胴の搬送作用
により自動的に繰り出されるテープ状樹脂フイル
ムを、缶胴の内外に配された上下一対の押圧ロー
ラーにより貼着して接合部の一次補正を行うよう
にした溶接缶接合部内面の補正方法であつて、そ
れなりの実効は得られているが、これら公知技術
は特に明示されてはいないが、隣接缶同志を連結
状態としているテープ状樹脂フイルムは、レーザ
ービームやカツターなどにより切断分離されてい
たものであつて、このような特別な分離機構を設
けることは装置の大型化、複雑化となりきわめて
不経済であるばかりでなく、高速で搬送される缶
列とのタイミング合わせに精度が要求され、切断
ミスの発生が多いなどの課題が残されている。 As a means of solving the problems of such correction painting methods, various methods have been proposed in which a resin film is attached to the welded joint. (For example, Tokuko Sho 53-
43350, Japanese Unexamined Patent Application Publication No. 1987-74436) The outline of the above-mentioned conventional technology is that a large number of welded cans are serially connected in tandem so that seam welding is performed and the seam welds are aligned on the same line. During this transportation, the seam weld joints on the inner surface of the can body are preheated in order from the preceding can body to a temperature higher than the melting temperature of the tape-shaped resin film, and the heated seam weld joints on the inner surface of the can body are In this welded can joint, a tape-shaped resin film that is automatically fed out by the conveying action of the can body is applied by a pair of upper and lower pressure rollers placed inside and outside the can body to perform primary correction of the joint. This is a method of correcting the inner surface of the part, and has been shown to be effective to some extent.Although these known techniques are not specifically specified, the tape-shaped resin film that connects adjacent cans can be used for laser beams, cutters, etc. Providing such a special separation mechanism would not only make the equipment larger and more complicated, which would be extremely uneconomical, but would also require timing alignment with the rows of cans being conveyed at high speed. However, there are still issues such as the high precision required and the high incidence of cutting errors.
本発明の目的は、シーム溶接々合部の内面を、
テープ状樹脂フイルムにて完全に補正せしめられ
た缶を、特別な分離機構によることなく自動連続
的に、而も、確実に分離しうるとともに、補正不
良部の発生に伴う腐蝕、金属溶出、内容物の漏洩
のない補正方法を提供することにある。 The object of the present invention is to
Cans that have been completely corrected with a tape-shaped resin film can be automatically and continuously separated without any special separation mechanism, and can be separated reliably, as well as preventing corrosion, metal elution, and content due to the occurrence of poorly corrected areas. It is an object of the present invention to provide a correction method that does not cause leakage of materials.
［課題を解決するための手段］
従来技術の課題を解決する本発明の構成は、シ
ーム溶接され、かつ、このシーム溶接々合部が同
一線上に揃うように、多数の溶接缶群を縦列で連
続搬送せしめ、この搬送途中において、先行缶胴
から順に上記シーム溶接々合部を、テープ状樹脂
フイルムの溶融温度以上となるよう前加熱を行
い、この加熱された缶胴内面のシーム溶接々合部
に、缶胴の搬送作用により自動的に繰り出される
テープ状樹脂フイルムを、缶胴の内外に配された
上下一対の押圧ローラーにより貼着して接合部の
一次補正を行うようにした溶接缶接合部内面の補
正方法において、シーム溶接々合部を、上記前加
熱工程における加熱温度以下の温度条件で再加熱
して二次補正すること、前加熱までの缶胴搬送速
度v1より、テープ状樹脂フイルムの貼着工程を経
て再加熱工程完了までの缶胴搬送速度v2を若干遅
くし、フイルム貼着時における缶胴間隔を短縮す
ること、再加熱による補正完了後の缶の搬送速度
v3と、再加熱完了までの缶胴搬送速度v2との関係
を、v3＞v2とし、缶胴間隔を強制的に拡大し、連
結状態にあるテープ状樹脂フイルムを自動的に切
断するようにしたものである。[Means for Solving the Problems] The configuration of the present invention which solves the problems of the prior art is to arrange a large number of welded can groups in tandem so that they are seam welded and the seam welds are aligned on the same line. During the conveyance, the seam welds on the inner surface of the can body are preheated to a temperature higher than the melting temperature of the tape-shaped resin film, and the seam welds on the inner surface of the heated can body are A welded can in which a tape-shaped resin film, which is automatically unwound by the conveyance action of the can body, is applied to the joint by a pair of upper and lower pressure rollers placed inside and outside the can body to perform primary correction of the joint. In the method for correcting the inner surface of the joint, the seam weld joint is reheated at a temperature lower than the heating temperature in the preheating step to perform secondary correction, and the tape is Slightly slow down the can body conveyance speed v 2 from the process of pasting the plastic film to the completion of the reheating process, shorten the interval between can bodies during film pasting, and reduce the conveyance speed of the can after completion of correction by reheating.
The relationship between v 3 and can body transport speed v 2 until reheating is completed is set as v 3 > v 2 , the gap between can bodies is forcibly expanded, and the connected tape-shaped resin film is automatically cut. It was designed to do so.
［実施例］
図面について本発明方法の実施例を説明する。
第１図は本発明方法を実施するための装置の一部
切欠正面図、第２図は第１図における第１フイル
ム貼着装置までの拡大図、第３図は第２フイルム
貼着装置の拡大図、第４図はテープ状樹脂フイル
ムのガイドアームの断面図、第５図はフイルム貼
着用の押圧ロール部の正面図である。[Example] An example of the method of the present invention will be described with reference to the drawings.
Fig. 1 is a partially cutaway front view of an apparatus for carrying out the method of the present invention, Fig. 2 is an enlarged view of the first film sticking device in Fig. 1, and Fig. 3 is an enlarged view of the second film sticking device. FIG. 4 is an enlarged view, and FIG. 4 is a sectional view of a guide arm for a tape-shaped resin film, and FIG. 5 is a front view of a press roll portion for pasting the film.
水平に支持され、かつ、断面形状が第４図に示
すように円形のガイドアーム（シーム溶接機の溶
接部で絶縁ジヨイント１ｂを介して連結した構造
のもの）１に被覆するように形成された筒状の缶
胴ブランク２は、継手部を上にした状態で、ガイ
ドアーム１にそつて第１図左から右方向に送ら
れ、缶胴ブランク２の継手部はシーム溶接機４に
よつてシーム溶接せしめられ、ガイドアーム１の
下面にそつて設けた搬送ベルト３にて一定の速度
で下手側に向け送られる。その途中において、更
にこの溶接々合部は、下手側に設けた前加熱装置
５により、テープ状樹脂フイルム６の溶融温度以
上に加熱され、この加熱された缶胴は、上記搬送
ベルト３の速度v1より遅い搬送ベルト７上に移さ
れ、缶胴同志が互いに近接した状態となる。 The guide arm 1 is supported horizontally and has a circular cross-sectional shape as shown in FIG. The cylindrical can body blank 2 is fed along the guide arm 1 from left to right in FIG. It is seam welded and is conveyed toward the lower side at a constant speed by a conveyor belt 3 provided along the lower surface of the guide arm 1. On the way, this weld joint is further heated to a temperature higher than the melting temperature of the tape-shaped resin film 6 by a pre-heating device 5 provided on the lower side, and the heated can body is heated at the speed of the conveyor belt 3. The can bodies are transferred onto the conveyor belt 7, which is slower than v 1 , and the can bodies are brought close to each other.
一方、ボビンに巻きとられているテープ状樹脂
フイルム６は、案内ロール８を経て上記ガイドア
ーム１の底部に、これの長手方向にそつて形成し
た凹溝１ａ内を通り、ガイドアーム１の延長下手
側に軸支された案内ロール９……を経て、缶胴内
に位置する内部押圧ローラー１０の上面まで誘導
されている。この内部押圧ローラー１０は、ガイ
ドアーム１に上手側端を軸支し、下手側端とガイ
ドアーム１との間に発条１１を弾設し、下手側が
上方に上昇付勢された押圧レバー１２に回動可能
に軸支してある。図中１３は、上記押圧レバー１
２の前後部のガイドアーム１に軸支され、上記搬
送ベルト７面に接触する支持ローラーで、この支
持ローラー１３と搬送ベルト７面との間に缶胴が
介入するようにしてある。 On the other hand, the tape-shaped resin film 6 wound around the bobbin passes through the guide roll 8 and into the concave groove 1a formed along the longitudinal direction at the bottom of the guide arm 1, and extends through the guide arm 1. It is guided to the upper surface of an internal pressure roller 10 located inside the can body via guide rolls 9 that are pivotally supported on the lower side. The internal pressure roller 10 has an upper end pivoted on the guide arm 1, a spring 11 elastically installed between the lower end and the guide arm 1, and a lower end attached to a pressing lever 12 that is upwardly biased. It is rotatably supported. 13 in the figure is the above-mentioned pressing lever 1
A support roller is pivotally supported by the front and rear guide arms 1 of No. 2 and comes into contact with the surface of the conveyor belt 7, and the can body is arranged to intervene between the support roller 13 and the surface of the conveyor belt 7.
そして、最先に前加熱された缶胴の先端が、上
記内部押圧ローラー１０と、これが圧接する外部
押圧ローラー１４の間に介入すると、予め誘導さ
れているテープ状樹脂フイルム６の先端が缶胴の
溶接の溶接々合部内面に熱溶着され、缶胴の進行
とともに、このテープ状樹脂フイルム６は自動的
に繰り出されるとともに、該テープ状樹脂フイル
ム６は順次缶胴の溶接々合部に貼着されるととも
に、上下一対の内外押圧ローラー１０，１４の押
圧力により、第５図に示すように隙間なく密着せ
しめられる。ちなみに、上記内外押圧ローラー１
０，１４はゴム、合成ゴム、合成樹脂などの、耐
熱性のある弾性材料によつて形成してあるため、
テープ状樹脂フイルム６は溶接々合部の形状にそ
つて貼着せしめられる。 When the tip of the preheated can body intervenes between the internal pressure roller 10 and the external pressure roller 14 with which it comes into pressure contact, the tip of the tape-shaped resin film 6 that has been guided in advance moves into the can body. The tape-shaped resin film 6 is thermally welded to the inner surface of the weld joint of the can body, and as the can body advances, this tape-shaped resin film 6 is automatically fed out, and the tape-shaped resin film 6 is successively pasted to the weld joint part of the can body. While being attached, the pressing force of the upper and lower pair of inner and outer pressing rollers 10 and 14 causes them to be brought into close contact with each other without any gaps, as shown in FIG. By the way, the above inner and outer pressure roller 1
Since 0 and 14 are made of heat-resistant elastic materials such as rubber, synthetic rubber, and synthetic resin,
The tape-shaped resin film 6 is pasted along the shape of the weld joint.
このように、最先の缶胴に後続する缶胴の溶
接々合部には、連続的にテープ状樹脂フイルム６
が貼着される。そして最先の缶胴の溶接々合部
は、下手側に設けられ、かつ、前加熱装置よりも
加熱温度が低く、好ましくは、樹脂フイルムの溶
融温度より低い温度による後加熱装置１５にて再
加熱せしめられ、溶接々合部に対するテープ状樹
脂フイルム６の貼着強度を更に高める。そして、
この後加熱装置１５の下手側に設けた上下一対と
なした内外押圧ローラー１６，１７によつて再押
圧することもある。この内外押圧ローラー１６，
１７の構成、および、支持構造は、上述した最初
の内、外押圧ローラー１０，１４の機構と同様で
ある。１８は支持ローラーである。 In this way, a tape-shaped resin film 6 is continuously applied to the weld joint of the can body following the first can body.
is pasted. The weld joint of the first can body is then reheated in a post-heating device 15 which is provided on the lower side and whose heating temperature is lower than that of the pre-heating device, preferably at a temperature lower than the melting temperature of the resin film. It is heated to further increase the adhesion strength of the tape-shaped resin film 6 to the weld joint. and,
After that, it may be pressed again by a pair of upper and lower inner and outer pressing rollers 16 and 17 provided on the downstream side of the heating device 15. This inner and outer pressing roller 16,
The configuration and support structure of 17 are similar to the mechanisms of the first inner and outer pressing rollers 10 and 14 described above. 18 is a support roller.
再加熱され、好ましくは、再押圧された補正済
みの缶胴は、第１図右端の増速ローラー１９と、
増速された搬送ベルト２０によつて搬送せしめら
れる。即ち、この搬送ベルト２０の速度v3、およ
び、増速ローラー１９の周速度v3は同速であり、
かつ、この搬送ベルト２０の速度、および、増速
ローラー１９の周速度は、前記搬送ベルト７の速
度v2より早くすることが条件である。よつて、増
速ローラー１９と搬送ベルト２０間に挟まれて搬
送される缶胴の搬送速度v3と、搬送ベルト７上に
ある後続の缶胴の搬送速度v2との速度差により、
両缶胴間にブリツジされているテープ状樹脂フイ
ルム部は、自動的に切断し缶胴は分離せしめら
れ、次の加工工程に搬送される。 The corrected can body that has been reheated and preferably repressed is connected to the speed increasing roller 19 at the right end in FIG.
It is conveyed by the conveyor belt 20 whose speed is increased. That is, the speed v 3 of the conveyor belt 20 and the circumferential speed v 3 of the speed increasing roller 19 are the same speed,
In addition, the speed of the conveyor belt 20 and the circumferential speed of the speed increasing roller 19 must be higher than the speed v2 of the conveyor belt 7. Therefore, due to the speed difference between the conveying speed v 3 of the can body being conveyed between the speed increasing roller 19 and the conveying belt 20 and the conveying speed v 2 of the following can body on the conveying belt 7,
The tape-shaped resin film bridged between both can bodies is automatically cut and the can bodies are separated and transported to the next processing step.
尚本発明は、溶接手段として電気抵抗シーム溶
接について述べたが、レーザー溶接などの手段で
も可能であるため、実施例のものに特定されるこ
とはないまた、本発明に使用するテープ状樹脂フ
イルムとしては、ポリアミド系、ポリエステル
系、ポリエチレン系、ポリ塩化ビニル系など公知
の樹脂材料を用いることが可能であるが、ポリア
ミド系、ポリエステル系が好適である。また、フ
イルム形状は、巾３〜15mm、厚さ0.05〜0.5mmが
好ましい。 In the present invention, electric resistance seam welding has been described as a welding means, but since means such as laser welding are also possible, the tape-shaped resin film used in the present invention is not limited to the embodiments. Although it is possible to use known resin materials such as polyamide, polyester, polyethylene, and polyvinyl chloride, polyamide and polyester are preferred. Moreover, the film shape is preferably 3 to 15 mm in width and 0.05 to 0.5 mm in thickness.
［発明の効果］
上述のように本発明の構成によれば、次のよう
な効果が得られる。[Effects of the Invention] As described above, according to the configuration of the present invention, the following effects can be obtained.
(a) 前加熱された溶接々合部にテープ状樹脂フイ
ルムを貼着し、更に押圧ローラーによつて押圧
することによつて、溶接々合部の補正がなしう
ることは勿論のこと、この貼着補正部を再加熱
処理することにより、更に一層補正の強化が図
れる。(a) It goes without saying that the weld joints can be corrected by attaching a tape-shaped resin film to the preheated weld joints and pressing it with a pressure roller. By reheating the adhesion correction section, the correction can be further strengthened.
(b) 再加熱温度が、前加熱温度より低く、好まし
くは、樹脂フイルムの溶融温度より低い温度で
あるため、再加熱処理により、第１次補正が崩
れることがなく、更に強力な定着が図れる。(b) Since the reheating temperature is lower than the preheating temperature, preferably lower than the melting temperature of the resin film, the primary correction is not destroyed by the reheating process and stronger fixing can be achieved. .
(c) 第１の貼着から再加熱の工程を多く搬送ベル
ト７の速度v2を、補正後の缶胴を搬送する搬送
ベルト２０の搬送ベルト２０の速度v3より小さ
くしたので、先行缶胴と後続缶胴間にブリツジ
状態にあるテープ状樹脂フイルムは、その搬送
速度差により自動的に切断され、缶胴は簡単に
個々に分離され、従来技術のようなレーザービ
ームやカツターなどによる特別な分離機構を設
ける必要がなく、経済的に有利である。(c) Since the steps from the first adhesion to reheating are increased and the speed v 2 of the conveyor belt 7 is made smaller than the speed v 3 of the conveyor belt 20 that conveys the corrected can body, the preceding can The tape-shaped resin film that is in a bridge state between the can body and the following can body is automatically cut due to the difference in conveying speed, and the can bodies can be easily separated into individual can bodies. There is no need to provide a separate separation mechanism, which is economically advantageous.
図は本発明方法を実施するための装置の一例を
示し、第１図は一部切欠正面図、第２図及び第３
図は、第１図の要部の拡大正面図、第４図はガイ
ドアーム部の断面図、第５図は内、外押圧ローラ
ー部の押圧状態を示す正面図である。
１……ガイドアーム、１ａ……凹溝、２……缶
胴ブランク、３，７，２０……搬送ベルト、４…
…シーム溶接機、５……前加熱装置、６……テー
プ状樹脂フイルム、８，９……案内ロール、１０
……内部押圧ローラー、１１……発条、１２……
押圧レバー、１３……支持ローラー、１４……外
部押圧ローラー、１５……後加熱装置、１６……
内部押圧ローラー、１７……外部押圧ローラー、
１８……支持ローラー、１９……増速ローラー。
The figures show an example of an apparatus for carrying out the method of the present invention, with FIG. 1 being a partially cutaway front view, FIGS.
The drawings are an enlarged front view of the main part of FIG. 1, FIG. 4 is a sectional view of the guide arm section, and FIG. 5 is a front view showing the pressing state of the inner and outer pressing roller sections. 1... Guide arm, 1a... Concave groove, 2... Can body blank, 3, 7, 20... Conveyor belt, 4...
... Seam welding machine, 5 ... Preheating device, 6 ... Tape-shaped resin film, 8, 9 ... Guide roll, 10
... Internal pressure roller, 11 ... Spring, 12 ...
Pressing lever, 13... Support roller, 14... External pressing roller, 15... Post-heating device, 16...
Internal pressure roller, 17... external pressure roller,
18... Support roller, 19... Speed increasing roller.
Claims (1)
部が同一線上に揃うように、多数の溶接缶群を縦
列で連続搬送せしめ、この搬送途中において、先
行缶胴から順に上記シーム溶接々合部を、テープ
状樹脂フイルムの溶融温度以上となるよう前加熱
を行い、この加熱された缶胴内面のシーム溶接々
合部に、缶胴の搬送作用により自動的に繰り出さ
れるテープ状樹脂フイルムを、缶胴の内外に配さ
れた上下一対の押圧ローラーにより貼着して接合
部の一次補正を行うようにした溶接缶接合部内面
の補正方法において、 シーム溶接々合部を、上記前加熱工程における
加熱温度以下の温度条件で再加熱して二次補正す
ること、 前加熱までの缶胴搬送速度v1より、テープ状樹
脂フイルムの貼着工程を経て再加熱工程完了まで
の缶胴搬送速度v2を若干遅くし、フイルム貼着時
における缶胴間隔を短縮すること、 再加熱による補正完了後の缶の搬送速度v3と、
再加熱完了までの缶胴搬送速度v2との関係を、v3
＞v2とし、缶胴間隔を強制的に拡大し、連結状態
にあるテープ状樹脂フイルムを自動的に切断する
ようにしたこと、 を特徴とする溶接缶接合部内面の補正方法。 ２ シーム溶接々合部を上向きとした特許請求の
範囲第１項記載の溶接缶接合部内面の補正方法。 ３ シーム溶接機の溶接部及び前加熱工程から、
繰り出されるテープ状樹脂フイルムをガイドアー
ムにより隔離する特許請求の範囲第１項または第
２項記載の溶接缶接合部内面の補正方法。 ４ 再加熱工程の下手順に、一対の押圧ローラー
による再圧着工程を設けた特許請求の範囲第１
項、第２項、または第３項記載の溶接缶接合部内
面の補正方法。[Claims] 1. A large number of welded cans are continuously conveyed in tandem so that they are seam welded and the seam welds are aligned on the same line, and during this conveyance, the above-mentioned can bodies are sequentially The seam weld joint is preheated to a temperature higher than the melting temperature of the tape-shaped resin film, and the tape is automatically fed out to the seam weld joint on the inner surface of the can body by the conveyance action of the can body. In a method for correcting the inner surface of a welded can joint in which a resin film is pasted by a pair of upper and lower pressure rollers placed inside and outside the can body to perform primary correction of the joint, the seam weld joint is Secondary correction is performed by reheating at a temperature lower than the heating temperature in the preheating process, and from the can body conveyance speed v 1 up to the preheating, the temperature from the pasting process of the tape-shaped resin film to the completion of the reheating process. Slightly slow down the can body conveyance speed v 2 and shorten the gap between can bodies when attaching the film; Can conveyance speed v 3 after completion of correction due to reheating;
The relationship between the can body conveyance speed v 2 until the completion of reheating is expressed as v 3
＞v 2 , the gap between the can bodies is forcibly expanded, and the connected tape-shaped resin film is automatically cut. 2. A method for correcting the inner surface of a welded can joint according to claim 1, in which the seam weld joint is directed upward. 3 From the welding part of the seam welding machine and the preheating process,
A method for correcting an inner surface of a welded can joint according to claim 1 or 2, wherein the tape-shaped resin film being fed out is isolated by a guide arm. 4 Claim 1 in which a re-pressing step using a pair of pressure rollers is provided in the lower step of the re-heating step.
The method for correcting the inner surface of a welded can joint according to item 1, 2, or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19736684A JPS6174742A (en) | 1984-09-20 | 1984-09-20 | Compensation method for joined part inner face of welded can |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19736684A JPS6174742A (en) | 1984-09-20 | 1984-09-20 | Compensation method for joined part inner face of welded can |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6174742A JPS6174742A (en) | 1986-04-17 |
| JPH0549373B2 true JPH0549373B2 (en) | 1993-07-26 |
Family
ID=16373296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19736684A Granted JPS6174742A (en) | 1984-09-20 | 1984-09-20 | Compensation method for joined part inner face of welded can |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6174742A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216297A (en) * | 2012-11-02 | 2016-01-06 | 冯林 | A kind of method and apparatus for sealed cylindrical inwall gap |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6178521A (en) * | 1984-09-27 | 1986-04-22 | Toyo Seikan Kaisha Ltd | Production of welded can body having corrected weld zone |
| JP5300226B2 (en) * | 2007-08-03 | 2013-09-25 | 大和製罐株式会社 | Can body guide mechanism |
| JP5258391B2 (en) * | 2008-05-30 | 2013-08-07 | 株式会社Ｎ．Ｐ．Ｗ技研 | Coated tape cutting method and coated tape cutting device |
| CN106964991B (en) * | 2017-03-10 | 2018-10-16 | 上海冀晟自动化成套设备有限公司 | Welding line of barrel body positioning rolls cutting system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5674436A (en) * | 1979-11-19 | 1981-06-19 | Toyo Seikan Kaisha Ltd | Welded can and its manufacture |
-
1984
- 1984-09-20 JP JP19736684A patent/JPS6174742A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5674436A (en) * | 1979-11-19 | 1981-06-19 | Toyo Seikan Kaisha Ltd | Welded can and its manufacture |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216297A (en) * | 2012-11-02 | 2016-01-06 | 冯林 | A kind of method and apparatus for sealed cylindrical inwall gap |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6174742A (en) | 1986-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1039817A (en) | Method and apparatus for seam welding overlapped edges | |
| US4956963A (en) | Method of sealing a shrink wrap package | |
| JPH0549373B2 (en) | ||
| US3077171A (en) | Method of forming the side seam of a can body | |
| US5997232A (en) | Method of making can bodies from sheet metal | |
| EP1645514A2 (en) | Method and device for applying wrap-around labels to containers | |
| EP0006854B1 (en) | Ring type calibrating cage | |
| JP2835704B2 (en) | Repair method for inner surface of welded joint of metal can body | |
| JPH09150469A (en) | Bag making machine | |
| JP2002102967A (en) | Tapelike resin film covering method to can barrel joint part | |
| JP2001286959A (en) | Resin film sticking method, and method for correcting weld seam part of welded can | |
| US6146695A (en) | Internal weld protection of sheet metal pipes | |
| JP4408163B2 (en) | Attaching a tape-shaped resin film to the weld seam of the can body | |
| JP4298013B2 (en) | Manufacturing method of welded can body | |
| JP3090307B2 (en) | Manufacturing method of outer surface resin coated steel pipe | |
| JP3221890B2 (en) | Manufacturing method of welded can body | |
| US4663195A (en) | Continuous coating process for discrete articles | |
| EP2139614A1 (en) | Method for coating a welded or glued seam of a container, container produced according to this method, and related device for carrying out the method | |
| GB2089690A (en) | Metal containers | |
| EP0070900A4 (en) | Method of producing container bodies and container bodies produced thereby. | |
| JPH0199705A (en) | Method for joining metal strip | |
| JPS63192525A (en) | Method and apparatus for manufacturing welded can shell corrected its joining part | |
| JPH11320152A (en) | Method and facility for continuous welding by laser beam in longitudinal direction of steel belt | |
| JPS63112074A (en) | Method and device for manufacturing metal can shell | |
| JPS60168630A (en) | Manufacturing device of sheet part for bonding process |